Cosmo, The tanks were installed by PO, of my 63 C20, fleetside. I'm not impressed with the installation. The tanks are mounted between frame and bed, behind cab. The filler openings comes out in the rear wheel wells. The switch is mounted on floor under the rear corner of drivers seat, a little more difficult to get too. My previous 63 had a 10 gal. tank behind driver and what I was told a Pinto on the other side. The switch was mounted on floor to the side of the seat, a little easier to get to.
When a tank goes dry, the 292 starts coughing and spitting. You very hurriedly try and find the switch and switch to a full tank before that Semi tries and climb up your your tail pipe. I would install senders in the tanks. I've thought about adding senders to mine and mounting a switch on the dash. So far switching tanks hasn't been a real problem. You get to know about when the tanks is going to empty.
My digital camera is a little cranky, but if you need more info I'd be happy get it to you.

Regards,
Larry

63 daily driver
Member of Team Craig Racing, Nostalgia JR Fuel.


I don't own a vehicle that isn't old enough to drink.